Mca Prep Day 3: Unit Rate

The table shows the cost of long distance calls based on the number of minutes used. Is there a constant rate of change, and if so what is it?

• Yes, 10 calls per minute

• Yes, $.10 per minute

• Yes, $.40 per minute

• Not a constant rate

A store has 120 customers in 6 hours. What is the unit rate in customers per hour?

• 16 customers per hour

• 12 customers per hour

• 20 customers per hour

• 15 customers per hour

If Maya makes $10 an hour at her after school job, how many hours will it take her to earn $150?

• 10 hours

• 1.5 hours

• 15 hours

• 20 hours

You go to the grocery store to buy dog food. The store has three sizes available:
A 20-lb bag for $23.44
An 8-lb bag for $9.88
A 40-lb bag for $49.00
Which size bag has the lowest cost per pound rounded to the nearest cent?

• The 8-lb bag

• The 20-lb bag

• The 40-lb bag

• I have a cat

Find the unit rate miles per hour.

• 24 miles per hour

• 3 miles per hour

• 1 miles per hour

• 8 miles per hour

If a person walks 1/2 mile in 1/4 hour, how far does that person walk in 2 hours?

• 2 miles

• 8 miles

• 14 miles

• 4 miles

$279 for 9 concert tickets. Find the cost per ticket.

• $31

• $39

• $2,511

• $34

Density is the ratio of mass to volume. A 3-liter jug of honey has a mass of 4.5kg. Write the density of honey as a unit rate.

• 1 liter-jug has a mass of 13.5kg

• 1-liter jug has a mass of 1.5kg

• 1.5 liter-jug has a mass of 1kg

• not here

1500 students and 75 classrooms. Create a unit rate.

• 20 classrooms to 1 student

• 20 students to 1 classroom

• 1,125 classroom to 100 students

• not here

Analyze the table. How many kilometers can be traveled in 1/3 hour?

• 1

• 3

• 10

• 20